Can you show me which pins I need to measure?
[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"IMG_5131.jpg","data-attachmentid":3259603}[/ATTACH]
When I disconnect the battery and close the lid and open it up again I get the startup link from Apple but I dont think that means anything right?Can you show me which pins I need to measure?
[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"IMG_5131.jpg","data-attachmentid":3259603}[/ATTACH]...
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I setup manually and it works although I don't think it's worth the money. When I set the bottom heater at max of 420 degrees the motherboard only gets to 80 degrees after 20 minutes
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Macbook A1990 stuck on logo
Hello,
This Macbook Pro 2018 boots up and then gets stuck on the logo.
All the normal methods of resetting this Macbook have been tried but do not work.
I cannot get into recovery mode and there is no bar displaying, it's just the white logo on a black background.
Any help would be greatly appriciated....
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ACHI IR6500 getting it to work
I tried installing the software that came with this new IR6500 but I get a C++ undefined error so I am stuck with non working software.
Tried downloading this software:
[url]https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/equipment-usage-soldering-techniques-and-reviews/72041-altec-pc410-bga-rework-to-communicate-with-pc[/url]
It did not open as well.
Anybody with an IR6500 that can help me out a little bit?https://I tried installing the softw... so I am stuck
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Hello friends,
I have a EliteBook 840 G7 where I flashed the 32mb BIOS chip with HPUnlocker but the password still exists.
Now I read about unlocking the 16mb chip and also use RCUnlocker.
I could not find the 16mb chip.
Anybody have experience with unlocking an 840 G7?...
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OEM lock on Intel CPU's
Recently I heard that some Dell laptops have a soldered on CPU OEM lock on them so that they can only be used on other Dell's. Does anybody know about this lock and possibly a way to remove them?
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ZBook 15 G3 BIOS chip identification EZP2019
I have desoldered the BIOS chip of a ZBook 15 G3 but my EZP2019 does not recognize it.
The text on it is faded but there is a G visible so it must be a GDxxxx I think.
Does anybody know what chip this can be?
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Dell Latitude E5590 NO BOOT comes on and goes off
I have a Dell Latitude E5590 that was working fine but suddenly it wont start.
The power light comes on and then after a couple of seconds goes off.
I have seen this many times with Dell and mostly it's the memory or an empty BIOS battery.
I have checked these things but none of them seem to be the issue.
Any ideas?
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Lenovo IdeaPad 530S-14IKB blown MOSFET
The second mosfet is blown (see image) and I want to replace it with a mosfet from a spare random motherboard (different make and model).
Can I just pick a scond mosfet from another board that has the same size or are there things i need to consider before soldering on another?...
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Re: Shorted inductor means short circuit? Asus ROG Gaming laptop.
What I do not understand is the first mosfet having 19v but no output. On the input of the second mosfet there is nothing which is normal. But on the output of the second mosfet there is 4.3v. Where is this voltage coming from?
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Re: Shorted inductor means short circuit? Asus ROG Gaming laptop.
On Ohms it doesn't measure anything. On K Ohms it measures 4.2.
There is no liquid damage visible anymore because someone tried to repair it. The customer told that first the WiFi stopped and then the motherboard didn't come on again.
Model is ASUS GX502LXS
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Shorted inductor means short circuit? Asus ROG Gaming laptop.
I have a dead Asus ROG gaming laptop with liquid damage. When I measure the first mosfet, there is 19V. On the second mosfet there is nothing on the input and 4.3V on the output but it is not continuously. It is going up and down.
I have read this article:
[url]https://www.prospace20.com/2022/03/how-to-diagnose-repair-dead-laptop.html[/url]
Is it through that inductors can never be shorted?
I have 2 inductors near the GPU that are shorted. Does this mean that the GPU itself is shorted? How can I know for sure?I have a dead Asus ROG gaming laptop with
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Re: Whats the name of this FAN connector?
I found this connector on multiple boards but I couldn't get it off without breaking. Ill try to see if I can find one where I can find a schematic for
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Whats the name of this FAN connector?
I need to buy a new connector like this one. It is for a FAN of a laptop but I don't know the name of it.
Anybody does?...
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Add chip to EZP2019 programmer for Lenovo ThinkPad X1 Yoga
I have a ThinkPad X1 Yoga 4th gen with a BIOS password.
It seems that the password is stored on the chip GD25B256D which I found and desoldered.
Now my EZP2019 cannot read it but I can add new chips to the database. There is however some data needed that I cannot seem to find anywhere in the datasheet of the chip itself:
Type: SPI_FLAH
Manufacturer: GigaDevice
Name: 25B256D
Delay: I think it's 30 but not 100% sure
class: 25 flash??
Flash: 256B
Flash page: I don't know
Voltage: 3.3V
Algorithm: No idea
...
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Schematics for Lenovo ThinkPad E590
I need schematics for Lenovo ThinkPad E590.
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Re: Acer NITRO 5 AN515-54-52UH Not booting
The resistance is still the same. So 0.1 on the ground side of the cap and 2R4 ohms on the IC side of the cap.
I also cleaned up the 3 caps and put them straight on the board but for the readings it made no difference.
Should I replace the IC now and see if that fixes the problem?
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Re: Acer NITRO 5 AN515-54-52UH Not booting
I have desoldered the blob but the resistance stays the same. The short is still there.
At the chip side of the blob there is no short.
This does indicate that the IC is shorted right?...
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Re: Acer NITRO 5 AN515-54-52UH Not booting
Does the reading I posted not make any sense?...
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Re: Acer NITRO 5 AN515-54-52UH Not booting
It's an automatic range detector but I put it on manual now and got the exact same readings.
This is measured on the cap from both sides. The one with the highest resistance is the side where the chip is.
Both the IC and the cap is soldered on now. I have measured shortage on the cap itself when it was detached from the motherboard but there was no short....
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